Tuned hellcat 705whp - Page 2

matt55 · 03-16-2015, 09:39 PM

Quote:

Originally Posted by G8GT4now

I just finished reading a thread about superchargers and burned cats.

How does the Hellcat overcome that issue??

Yeah that ^

Johnthegreat · 03-16-2015, 10:28 PM

Quote:

Originally Posted by G8GT4now

I just finished reading a thread about superchargers and burned cats.

How does the Hellcat overcome that issue??

Good point.

luckynuts · 03-16-2015, 11:29 PM

707 crank stock............668 rwhp stock. 15% loss thru' the drivetrain, That's bad math????

1fastmf · 03-16-2015, 11:57 PM

Quote:

Originally Posted by G8GT4now

How does the Hellcat overcome that issue??

It doesn't

newmoon · 03-17-2015, 07:30 AM

Quote:

Originally Posted by macwest

Impressive they could crack ecu for a tune so quickly. Also, nice numbers but as far as I see it unless they do a wide body kit and larger tires. traction will be a joke.

It's my understanding 305s will fit, and the car has already gone 10:40s on 275s

Denis · 03-17-2015, 05:13 PM

Quote:

Originally Posted by G8GT4now

I just finished reading a thread about superchargers and burned cats.

How does the Hellcat overcome that issue??

How does the ZL1 and GT500 do it?

crysalis_01 · 03-17-2015, 06:10 PM

Quote:

Originally Posted by Denis

How does the ZL1 and GT500 do it?

I can't speak to the ZL1 guys, but I've seen threads on SVTP discussing this topic. Most GT500 and Terminators go to catless midpipes, seeing as its only a matter of time before they melt in high (700+) hp applications. This is exacerbated by strenuous use of the drive train. Emission testing guys keep a catted mid to reinstall before the test, then after passing they go back to careless pipes.

macwest · 03-18-2015, 12:02 AM

Quote:

Originally Posted by newmoon

It's my understanding 305s will fit, and the car has already gone 10:40s on 275s

good luck on 305's' only if you stagger the rim then the whole tire is not flat anyways. As for the time will have to see it being repeated I expect most will be be doing allot worse then that.

VADER SS L99 · 03-18-2015, 12:16 AM

Quote:

Originally Posted by Denis

How does the ZL1 and GT500 do it?

Factory FI cats are much stronger than aftermarket high flow cats like you get from Kooks or ARH. They rob power but with the stock tune or correct aftermarket tune they hold up.

Expunge · 03-18-2015, 09:06 AM

It has been my observation that stock ZL1 cats do not hold up with poweradders exceeding 50hp over stock. There are plenty of people on the forum who have had cat failure from merely a tune and headers. Throw in a pulley and rotofab and yeah, sooner rather than later you will have issues if the cat is not addressed.

My 2 cents.

newmoon · 03-18-2015, 09:07 AM

Quote:

Originally Posted by macwest

good luck on 305's' only if you stagger the rim then the whole tire is not flat anyways. As for the time will have to see it being repeated I expect most will be be doing allot worse then that.

If I am in search of fast E/Ts with an otherwise stock vehicle the first thing I would do is go aftermarket wheels and DRs. Just as the 500, 5.0, and ZL1, crowd presently does. I am not sure what the max tire that will fit on the stock Hellcat wheels but I imagine 295s would be ok. There are however multiple owners running 305s with these aftermarket wheel setups. As these cars hit the track you will see E/Ts fall. But hey I get it your not impressed with 10:40s - 10:80s out of a 275 series DR, LOL.

Denis · 03-18-2015, 10:11 AM

Quote:

Originally Posted by VADER SS L99

Factory FI cats are much stronger than aftermarket high flow cats like you get from Kooks or ARH. They rob power but with the stock tune or correct aftermarket tune they hold up.

oh okay, didn't realize the ZL1 had different cats then the SS did. makes sense.

MEDISIN · 03-18-2015, 10:22 AM

Quote:

Originally Posted by newmoon

If I am in search of fast E/Ts with an otherwise stock vehicle the first thing I would do is go aftermarket wheels and DRs. Just as the 500, 5.0, and ZL1, crowd presently does. I am not sure what the max tire that will fit on the stock Hellcat wheels but I imagine 295s would be ok. There are however multiple owners running 305s with these aftermarket wheel setups. As these cars hit the track you will see E/Ts fall. But hey I get it your not impressed with 10:40s - 10:80s out of a 275 series DR, LOL.

Don't forget to purchase extra driveshafts with those drag radials!

Denis · 03-18-2015, 10:41 AM

Quote:

Originally Posted by MEDISIN

Don't forget to purchase extra driveshafts with those drag radials!

well that's an easy fix

http://www.driveshaftshop.com/domest...ece-driveshaft

http://www.driveshaftshop.com/domest...ece-driveshaft

03-16-2015, 11:29 PM	#17
luckynuts Drives: 10 ABM 1SS/00 Z28 Conv/14 SumWh 2LT Join Date: Apr 2009 Location: Kingston, ON Posts: 960	707 crank stock............668 rwhp stock. 15% loss thru' the drivetrain, That's bad math???? __________________ 1 SS/RS 6Sp White Rally Stripes

03-18-2015, 09:06 AM	#24
Expunge Drives: 2013 ZL1 M6, '99 Tahoe 2Dr Sport Join Date: Mar 2013 Location: South of Houston, TX Posts: 890 View My Garage	It has been my observation that stock ZL1 cats do not hold up with poweradders exceeding 50hp over stock. There are plenty of people on the forum who have had cat failure from merely a tune and headers. Throw in a pulley and rotofab and yeah, sooner rather than later you will have issues if the cat is not addressed. My 2 cents.